I want my ex back, but she doesn't want me. I'm still so in love with her, and she claims she still loves me and that we may get back together in the future, but I can't move on from the love of my life. She was the first person I had sex with and the only one since. I don't know what to do.

You have to advance, be a better person, I'm going through something similar, what I am doing is exercising a lot and learning a new language, I'm also focusing in my career and looking as good as possible, so even if you don't get back together you'll feel better about yourself and she will notice you